Improvement in boot and shoe heeling machines



6 Sheets-"Sheet 1.

T.l COWBURN. Boot and Shoe H'eelingMaohine. No. 214,369. Patented April l5, 1879.

NA PEFERS. PHOTO-LITHDGRAPNER, WASHINGTON4 D C.

`6 sheets-sheen 2. T. COWBURN. Boot and Shoe Heeling Machine. No. 214.369.

Patented April 15, 1879..

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T. COWBURN. Boot and Shoe Heelng Machine. No. 214,369. l Patented April 15,1879.

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ffy/6MM y M M7 N PETERS, 'FMOTO LITHOGRAFMER. WASHINGTON, D C.

6 Sheets-Sheet 4. T. OOWBURN Boot and Shoe Heelng Machine. No. 214,369. Patented April 15, 1879.

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l 6 Sheets-Sheet 5. T. COWBURN. Boot and Shoe Heelng Machine. No. 214,369. Patented Apri|15,1879.

".FETERS, FHOTOJJYMOGRAPHER. WASHINGTON. D C.

6 Sheets-Sheet 6. T. COWBURN Boot and Shoe Heeling Machine. No. 214,369. Patented April 15, 1879.

UNITED S TATE/S PATENT FFICE.

THOMAS OOWBURN, OF GLOUCESTER, ENGLAND.

IMPROVEMENT IN BOOT AND SHOE HEELING MACHINES.

Specification forming part of Letters Patent No. 214,369, dated April 15, 1879; application iiled August 19, 1878A; patented in England, May 8, 1878.

To all 'whom it may concern.-

Be it known that I, THOMAS CownUnN, formerly of the cityv and county of Bristol, England, but now residing in the cit-y of Gloucester, England, have invented Improvements in Boot and Shoe Heeling Machines, of which the following is a specification.

My said invention relates to machinery or apparatus for riveting and shaping or paring and iinishin g the heels of boots and shoes, for which invention I have obtained an English patent, No. 4,169 of 1877, complete specification filed May S, 187 S.

In carrying out my said invention, I proceed in the following manner: For riveting and shaping the heel I take the upper part of the boot or shoe (the sole having been previously attached by riveting, sewing, or otherwise) and place it upon a ram or holder, and maintain it in contact therewith. The materials for the heel, consisting of lifts and top piece, are placed on a block and are retained in position by a clip or cup. On setting the machine in motion the requisite number of rivets or nails are released and pass down tubes in the ram or holder, falling onto the insole, which is being held against it. The ram or holder then descends and presses the sole onto the material of the heel, and, continuing to descend, forces the rivets into the@ heel at the desired angle and holds the heel firmly on the block. The clip or cup is then withdrawn by a further movement of the machine out of the Way of the paring-knife, next hereinafter described.

This knife is carried on a slide workingin a lever or arm revolving 011 a vertical axis nearly concentric with the heel, and has a reciprocating partial rotary motion imparted to it round three sides of the heel.

The knife is caused to approach to or recede from the center by a curved guide, which directs the lower edge of the knife and gives the,

form to the bottom of the heel.

The top or seat can be made of a different shape or form by the employment of another curved guide, which gives the necessary movement to the upper edge of the knife. This guide may be set to give a greater or less difference between the shape of the top and that of the bottom of the heel. The upper edge or seat of the heel is pared true by a separate adjustable knife Xed to the main knife or to an arm, and receiving the same lateral motion as the upper edge of the main knife. The paring round the heel being completed and the knife having returned, a further motion of the machine raises a knife fixed on a diagonal or curvilinear slide to cut the front of the heel. The knife-slide falls, and, the ram or holder being raised, the operation is complete.

For burnishing the heel the knife-slide is removed and a burnishing-tool, which may be heated by a gas-jet or other means, is inserted. The motion for Working the knife is put out of gear, and a more rapid motion given to the crank-arm or other device which polishes the surface.

If the top piece of the heel is to be riveted on at the same time, the rivets or nails are carried in a suitable rack mounted on a center-pin or on a slide, and before the material for the heel is placed on the block the rackis swung or slid over it, and a lever being depressed the rivets or nails are run down tubes into holes in the block corresponding to the number and in the position required in the heel. The rack is then removed and the operation before described is performed, and While the upper ram or holder presses the heel firmly onto the block a driver or ram ascends and forces certain punches which are provided against the rivets in the block and drives them into the heel. The paring operation is then performed, and the upper ram or holder finally ascends and the boot is removed.

In order that my said invention may be fully understood, I shall now proceed more particularly to describe the same, and for that purpose shall refer to the several figures on the annexed sheets of drawings, the same letters of reference indicating corresponding parts in all the figures.

Figure 1 of the accompanying drawings represents a front elevation of a machine constructed according to my said invention for riveting, shaping or paring, and finishing the heels of boots and shoes. Fig. 2 is a side elevation, and Fig. 3 a plan, of the same. Fig. 4

yis a sectional plan with the upper part removed. Fig. 5 is a sectional side elevation. Fig. 6 is a sectional front elevation, and Fig.

7 is a sectiolial plan with the top of the table removed. Fig. 7 is a sectional detail of the ram or holder alid its appurtenances. Figs and 9 illustrate another moditic-.ition ot' cutting-knife. Figs. 1U, ll, and l2 are enlarged views of the springs aiid rivet-feeders, herein` after more fully described. Fig. l2 illustrates a modification of the holder and the riveting motioli.

The various parts of the machine, hereinafter described ill detail, are carried on a stand or frame, A, iliade of a suitable shape forthat purpose. The iliotioli is derived fl'olii the shaft B, mounted in bearings B, and actuated by the belt-pulley B2 alid a belt and another pulley from any suitable prime mover. 0n the shaft B is a friction-clutch, B, one part sliding on feathers on the shaft and the other loose, with a worm, B4, at one end. This worin gives motion to a worin-wheel, C, keyed on the main shaft G1, wliicll rotates in hearings (.12. The shaft Cl makes one revolution for a com plete operation of the machine, and is biought to rest by the pin C coming ill contact with rods C4, which are connected to the lever B5, mounted on centers or fulcra at 1 in the frame A. The lever B5 puts the frictionclutcll B3 in or ollt of gear, the necessary pressure for holding the parts ofthe clutch in gear being given by the spring B6.

When another operation of the machine is required the rods C* are lifted clear of the stop-pin G3 by the foot-lever and rods BT. BH is a lever connected to the lever B5, and which is provided for the facility of stopping the niachilie by lialid when required.

D is the rain or holder, on wllicli the upper part, a, of the boot or shoe is placed, the sole having been previously attached by riveting, sewillg, or otherwise. This raiii or holder is carried by the arni DI, working in suitable guides in the frallie A. The arm is lifted by the cam E aiid roller E', and pressed dowli by the cani F alid roller F', the said rollers being carried in a frame, 3, fitting on the arln D, andy/'icing adjustable for different thicknesses ct' work b v the screw aiid wheel 4.

The cams E aiid F are so arranged that the falling side of the calii li nearly coincides with the rising side of the cani F. and vice versa.

The rain l) is hollow alid fitted with a spilldle or bolt, D2, having a collar, 5, to rest on the lower part, and a spiral spring, (i, to bear on the collar 5 alid against the cap 1)7 of the ram. 0n the lower end of the spindle l)2 is fixed a die or presser, G, for pressing upon the insole of the boot or shoe a placed thereon. This die is perforated with holes G correspondilig with the number of rivets or nails which are to be driven from the inside of the boot or shoe, the holes or perforations being arranged ill the direction in which the rivets are to be driven.

The rain D is provided with a number of grooves or channels, 7, corresponding with the holes in the die (i, aiid a tliili casing of lnetal on the exterior forins with the grooves passages for the rivets. On the lower end of the rain Dare hinged drivers or punches D3, (shown lliost clearly in Fig. 73,) of a flat section,'with the lower end thicker -to form two shoulders, It). The middle or tiat part, 17, ofeach passes into a groove, 18, in the die, while the broader end. 1li, slides up the passage G for the rivets, which is wider tliali the groove near the top of the die or presser Gr. The passage G slopes off toward the center, as shown at 19. When the ram D is raised the spring 6, pressing on the bolt 1)?, forces it dowli, and the drivers or punches D3 fall back toward the center into the slope at 1S) in the top of the die, alid allow the rivets 9 to pass down the hack. This position of the parts is represented ill Fig. 7.

The rivets are conveyed to the ram by small tubes II, (one to each channel 7 in the rani,) which are fixed in a bracket, H', secured to the frame A of the machine. 1When the ram rises the channels in the ram pass freely over the tubes. The rivets or nails are conveyed to the tubes by holes 8 through the stand I by means of the racks or guides I, which are grooved to allow the shank of the rivet to slide freely down the head or shoulders resting on the edges.

The springs I2 which are shown on an enlarged scale in Fig. 10) retain the rivets 9 ill the rack by the lower or longer leg, 10, of the spring heilig in contact with the last rivet in the rack, alid the shorter leg, 11, heilig clear of the head of the said rivet. When the bar l3 is raised by the rain D rising it presses against the shorter leg 11 of the spring, which retains the next rivet ill place, While the bar I3, still rising, presses out the longer leg 10 of the spring and releases the rivet, which slides down the rack or falls ilito the tubes direct. The lift of the bar I3 is adjusted by the nuts or screws at 12 on the upper end of the rods I, and by a slotted lever and adj listing-screw, 15, on the head of the ram. a The die Gr is maintained in close contact with the insole by the cam F, and holds the heel o' flrlnl y on the block J, which rests on the stand or table A, the clip or cap U, which in my drawings is shown clear ofthe heel, being employed to maintain the lifts alid top piece of the heel in position previously to the descent of the die G and dul'ing the operation of attaching the heel to the sole.

The block J, which is perforated with holes corresponding to the number of rivets or nails required in the top piece or under side of the heel, is inade hollow, and has a piece, J', fitted iliside to move up alld down a distance slightly exceeding the length of the longest rivets. 1n this piece are titled drivers or punches similar to those of l)3 in the upper ram, and workilig througll holes or grooves in the block J The lifting-piece J' rests on the top ofthe ram K, which is elevated by the cam K', wheel K2, and lever K3.

The rivets are fed iilto the holes in the block by the rack L, (see Fig. 11,) which swings on the stud L1 and extends over the block .Iwhe'n the ram D is up. The rack yis fitted Vwith springs L2 and tubes L3, similar to the tubes and springs with which the rack Il for the/upper ram, D, is provided, with the exception that the rivets 12, after being delivered by the springs, slide down the lower slope, and the lower part of the shank comes in contact with a stop, L4, Fig. l1, which turns the rivets head downward before they fall into the tubes L3. The tubes terminate in a piece with/perforations similar to those inthe block J.,

On depressing the lever L5 the bar L is operated. A rivet is released for each tube and passed down into the holes in the block. The rack L is then turned out of the Way.

It will thus be seen that the heel is made and attached to thesole in one operation, the descent of the upper ram or holder, D, having the effect of forcing the rivets supplied from the rack I1 downward through the inside lifts and top piece, thereby attaching the heel bodily to the sole, and if the top piece is to be riveted on at the same time the rivets supplied from the rack L are forced upward by the driver K, and the parts are thereby united together.

When the upper ram or holder has descended and the rivets have been thereby forced into the heel, the clip or cup U is withdrawn, by the means hereinafter explained, out of the way of the cutting or paring knife M, which next comes into operation, and the function of which is to pare round three sides of the heel. This position of the parts is that indicated in the drawings.

The cutting or paring knife M is made of the desired shape for the back of the heel, and fixed in a lever, Ml, pivoted on a center, M2. The tail end of the lever is provided with a friction-roller, resting on a sh aper-bar, N. This bar is hinged at Nl, and is adjusted horizontally by the bolt and nut N2. The center M2 is carried on a slide, M2, which can be moved to adjust the knife to the size of the heel.

The knife M is worked round three sides of the heel by the cam O and lever Ol, moving the toothed rack O2 and toothed pinion P, the axis of which latter is the ram K, on which it works.

To the pinion P is connected by a sleeve the radial arm P1,with angular sides to form guides, on which works the slide P2, having a boss or cylindrical part on its upper side, with a hole therein for the reception of the round shank ot' the part M, on which slides the knife-carrier M2.

The cylindrical part of the slide P2 tits into a groove or slot, Gr', in the top of the tablestand A, made, by preference, a separate piece and let into the table. This slot is of a shape corresponding with the shape of the lower part of the heel, so that when the arm Pl moves round its axis the cylindrical part of the slide P2 follows the groove or slot G', and moves the knife-carrier in the form of the heel.

On the end of the round shank of the part M4 is fixed a crank, R, with a friction-roller, R1, at its outer end, which works in a groove or slot, R2, in the plate R3. This groove is of similar shape to the groove or slot G', and the two extremities are a corresponding distance from the center of the axis ofthe pinion P; but the opposite center-line is set at a distance from the center-line of the groove G (see dotted lines in Fig. 4) equal to the distance between the centers of the friction-roller ltl and the shank on the crank R.

As the cylindrical part of the slide P2 passes round the groove G the friction-roller Rl also moves round the groove R2, and thus turns the shank of the part Pl, and with it the cuttingknife M, so that the cutting-edge is always at the saine relative angle with the material being cut.

The ends of the grooves G and R2 turnoutward from the center to draw the knife farther from the heel when the cut is finished and before it commences.

The shaper N is made of such a form and so adjusted that when the cutting-knife moves from a central position the tail end of the lever M1 rises or falls, as may be desired, and so moves the upper edge of the knife nearer to the heel relatively with the lower edge or draws it farther from it.

On the upper part of the lever M1 is fixed a small knife or cutter, S, which cuts round the seating of the heel at the same time that the main knife M moves round. The knife or cutter Sis adjustable, so that its position may be varied as required.

The paring round of the heel having been completed, the knife M returns, and aknife, T, is raised automatically for cutting the front of the heel. This knife is fixed in a curvilinear slide, T1, which receives an upward motion from the cam T2, roller T2, and levers T", T5, and T6, and is withdrawn by aspring, 20. The ram or holder D is then raised and the operation is complete, the machine stopping automatically bythe means hereinbefore described.

The clip or cup U, for supporting the parts of the heel previously to and during the operation of riveting, is moved toward and from the block J in the following manner: The cup or clip U is drawn forward by hand, and is held in position by the catch and spring U1. At the proper time the catch Ul is pressed back by the lever U2, actuated by the ca ni U3 and roller U4, and the clip is thus pushed back and held clear of the cutting-knife M until the paring operation is completed.

When it is required to burnish or polish the heel the knife-slide M is removed and a burnishing-tool is inserted. This tool may be of any suitable description, and may be heated by a gas-jet or other convenient means. The burnishin g or polishing motion is derived from the crank V and rod Vl, which latter is connected to the bell-crank lever V2, working on the same fnlcrum as the lever Ol, so that the pin which engages the cam O can 'be withdrawn from it and inserted in the eye of the lever Y2. The crank then gives rapid motion to the slide (similar to the slide 31) in which the burnishing-tool is tixed.

Figs. 8 and 9 illustrate another modification of knife-holder for the knife M, employed for shaping the heel. The knife is carried on a sliding piece, W, which moves freely on a curved slide, W. which is fixed on the part i M4. The piece is moved iip and down the slide by the level' X, which has its t'nlcrum at M3. One end ofthe lever is connected to the kiiife-holder\\', and the otherend carries two frictioii-rollers, 13 14, the one, 13, being under and the other, 14, overtlie shaper-bar Y, which is of suitable shape to move the upper part of the knife closer to or farther from the seating of the heel. The seating-knife S is carried on the top of a lever, Z, which has its fulcriiiii on a pin in the slide M4. It is caused to approach nearer to the seating when ilie sliding piece W rises by the pin Z moving in a diagonal slot iii the lever Z.

Fig. 12 shows another modification of nail or rivet feeder, in which, in lieu of employing a rack to receive the rivets and passing them to the springs, the rivets are fed into a tube, H', of suitable size forthe heads to pass down freely. The rivets stand one upon another, and at the point where the feeding-springs l2 operate an opening, 15, is cut in the tube H. The rivets thence pass one into each ofthe series of tubes II.

Fig. 12ZL is a vertical section, illustrating an arrangement ofra m or holder and rivet-drivers in which the holding-down motion is separate from the riveting motion, one half being shown with the drivers down and ilie other with them elevated.

D is the holder or rain, carried by the arm D1. The die or presser (l is tixcd on the ram, and perforated t'or the passage of the rivets. The drivers or punches l):i are continued through the rain and work on inclined surfaces D, corresponding with the angle at which the rivets are to be driven. The upper parts of the drivers are connected by a tlange and bush, D5, (sliding on a continuation ot' the rain,) to an arm, D6, which moves simultaneously with the arm 1)', by a cani on the shaft C', and after the die G presses the heel tirinly on the block the arm Di still descends and drives the rivets home.

When the drivers return to the top of their stroke they slide up the inclined surfaces l)4 and leave a space between the bottom ot' the groove in which they work and the back of the drivers, down which the rivets pass into the die G. The rivet-tiibes Il are tixed in the cap of the ram, and can be fed by either arrangement hereinbefore described.

It' desired, the rivets for attaching the heel to the sole may be driven vertically in lieu of i at an angle, diti'ereiit lengths of rivets being employed to suit the conti' guration of the heel.

I claim as my invention- 1. In a boot and shoe heeling machine, the

combination ofthe ram D and die carrying the nailing or riveting devices, and adapted to the inside ofthe boot or shoe, with a block., J, adapted to support the heel-pieces, and also provided with nail or riveting mechanism, all substantially as and for the purpose set forth.

2. The combination of a perforated die, G, with the ram D and a series ot' drivers or punches, D3, hinged to said ram, as described.

3. The slide P2, in which is fitted the shank ofthe knife'carrier M3, and which is provided with a boss adapted to a groove in the table, in combination with a crank, R, on the lower end of said shank, and adapted to a groove in the frame, as and for the purpose set forth.

4. The combination of a block and die for holding the boot or shoe and a cuttingtool for paring the rounded portion of the heel with a knife, S, carried by the saine holder, and adapted to pare or trim the upper edge or seat of the heel, substantially as described.

5. The combination of devices for holding the boot or shoe with a knife, T, having a curved upward movement for cutting the front of' the heel. as described.

6. The combination, in aboot and shoe heeliiig machine, of the knives M, S, and T, for trimming the sides and edges of the heel.

7. The combination of devices, substantially as described, for carrying the cutter M, with guide-slots G and R2, as set forth.

8. The combination of the pivoted tool-car rying lever with the adjustable Shaper-bar N, substantially as described.

9. The combination of a supporting-block with a ram, D, carrying a die, G, a number of channels for the nails or rivets, and a series of punches or drivers, whereby said drivers or punches may be operated simultaneously, as set forth.

10. The rain D of a boot and shoe lieeling machine and a die, Gr, carried by said rain, and having a series ot' holes arranged at an angle, in combination with punches for driving the nails or rivets in an angular direction, substantially as specified.

11. 'llie combination of the ram and nailing or riveting devices with the independent clip or cup U, adapted to be moved into and out of position in relation to said ram, as set forth.

12. The combination of the nail, racks or guides 1I with a spring, 12, having legs l() 1l, and with a bar, 13, as set forth.

13. The combination of the knife M and its holder with the adjustable knife S, as specitied.

1n witness whereof I have signed my name to this specification in the presence of two subscribing witnesses.

THOMAS COVBURN.

Vi'itnesses:

J AMES PLATT,

Gloucester. J AMES FIELDING,

G Io ucester. 

